VOIP communication system and method

The invention discloses a VOIP communication system comprising a first VOIP terminal, a user agent, and a second VOIP terminal. The first VOIP terminal is capable of sending a first invite signal complying with a first communication protocol. The user agent is capable of receiving the first invite s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN HAO, LAI CHENG-SHING
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	The invention discloses a VOIP communication system comprising a first VOIP terminal, a user agent, and a second VOIP terminal. The first VOIP terminal is capable of sending a first invite signal complying with a first communication protocol. The user agent is capable of receiving the first invite signal, converting the first invite signal to a second invite signal complying with a second communication protocol, and transmitting the second invite signal. The second VOIP terminal is capable of receiving the second invite signal and sending a second accept signal complying with the second communication protocol to the user agent according to the second invite signal. The user agent converts the second accept signal into a first accept signal complying with the first communication protocol and transmitting the first accept signal to the first VOIP terminal. Thereby, the first VOIP terminal can communicate with the second VOIP terminal.